CN220015538U

CN220015538U - Low noise fan and hair care appliance

Info

Publication number: CN220015538U
Application number: CN202321409344.9U
Authority: CN
Inventors: 林章敏; 陈彬
Original assignee: Shenzhen Chaowei System Technology Co ltd
Current assignee: Shenzhen Chaowei System Technology Co ltd
Priority date: 2023-06-04
Filing date: 2023-06-04
Publication date: 2023-11-14
Anticipated expiration: 2033-06-04

Abstract

The utility model discloses a low-noise fan and a hair care appliance, which comprises an active impeller, a guide impeller and a guide shell, wherein the active impeller and the guide impeller are adjacently arranged, the guide shell comprises a coaming, a base platform and a plurality of guide plates, the base platform is arranged at the center of the guide shell, the coaming is arranged on the peripheral sides of the active impeller, the guide impeller and the base platform, the guide plates are arranged between the base platform and the coaming, and a plurality of air outlet channels are formed among the guide plates. Through setting gradually initiative impeller, impeller and guide plate, based on the double-deck water conservancy diversion structure that impeller and guide plate formed, can reduce the wind noise that the other structures of striking formed after initiative impeller formed initiative air current, avoid the unordered flow striking fan internal mechanism of air current that forms to form the effect that reduces fan wind noise. Meanwhile, a plurality of air outlet air channels are formed among the plurality of guide plates, so that the formed air flow is dispersed into a plurality of air flows to be discharged simultaneously, the blown air flow is uniform on the whole, and the wind noise is further reduced.

Description

Low noise fan and hair care appliance

Technical Field

The utility model relates to the field of blower equipment, in particular to a low-noise blower and a hair care appliance.

Background

The hair dryer is a traditional hair care appliance, generally is provided with a shell with a handle which can be used for air outlet, a user aims the shell at the head through holding the handle, so that the air flow of the hair area can be improved, and meanwhile, a heating wire is further arranged in the shell, so that the blown air has higher temperature.

The fan is required to be arranged inside a common blower to form active air flow, and because the blower is required to be used, the use requirement can be met due to the fact that the air flow is generally high in air speed, but the noise of the conventional blower is high, the air flow formed by rotating the impeller is directly discharged outwards, the formed air flow lacks a diversion structure, and high-speed air flow is caused to strike the inner structure of the blower and the inner structure of the blower from different angles, so that high wind noise is formed.

Disclosure of Invention

The utility model provides a low-noise blower, and aims to solve the problem that the wind noise of the conventional blower is large.

According to the embodiment of the utility model, a low-noise fan is provided, which comprises an active impeller, a guide impeller and a guide shell, wherein the active impeller and the guide impeller are adjacently arranged; the guide shell comprises a coaming, a base and a plurality of guide plates, wherein the base is arranged at the center of the guide shell, the driving impeller, the guide impeller and the base are sequentially arranged, the coaming is arranged on the periphery sides of the driving impeller, the guide impeller and the base in a surrounding mode, the guide plates are arranged between the base and the coaming, the guide plates are arranged on the periphery sides of the base in a surrounding mode at equal intervals, and a plurality of air outlet channels are formed among the guide plates; the direction of the fan blade of the driving impeller is different from that of the fan blade of the guide impeller.

Preferably, the number of the blades of the driving impeller is different from the number of the blades of the guide impeller, and the number of the blades of the driving impeller is more than the number of the blades of the guide impeller.

Preferably, the abutment is close to a surface of one side of the impeller and is provided with a convex fixing column, the impeller is sleeved on the periphery of the fixing column, the impeller is fixed on the fixing column, and the driving impeller is covered on the end face of the fixing column.

Preferably, the motor further comprises a stator, wherein the stator is arranged on one side of the base station away from the driving impeller; the rotating shaft passes through the stator and the base station and drives the driving impeller to rotate.

Preferably, the stator comprises an iron core and a coil, the iron core is of an integrated structure, a fixing part extending inwards is arranged on the inner side surface of the iron core, and the coil is wound on the fixing part.

Preferably, the base is provided with a fixing groove at one end far away from the driving impeller, and the iron core is positioned in the fixing groove.

Preferably, a plurality of linear air outlet channels are formed between the guide plates at intervals.

Preferably, the impeller is an integrally molded plastic structure.

The utility model also provides a hair care appliance which comprises a handle and the low-noise fan of any one of the air cylinders.

Compared with the prior art, the low-noise fan and the hair care appliance provided by the utility model have the following beneficial effects:

1. through setting gradually initiative impeller, impeller and guide plate, based on the double-deck water conservancy diversion structure that impeller and guide plate formed, can reduce the wind noise that the other structures of striking formed after initiative impeller formed initiative air current, avoid the unordered flow striking fan internal mechanism of air current that forms to form the effect that reduces fan wind noise. Meanwhile, a plurality of air outlet air channels are formed among the plurality of guide plates, so that the formed air flow is dispersed into a plurality of air flows to be discharged simultaneously, the blown air flow is uniform on the whole, and the wind noise is further reduced.

2. Through setting up impeller to the integrated into one piece structure of plastic, impeller can play the effect of absorbing vibrations and wind noise based on the material of plastic, noise when reducing fan operation, especially in the water conservancy diversion in-process, compare in the metal material and have better effect of reducing wind noise.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural diagram of a low noise blower according to a first embodiment of the present utility model.

Fig. 2 is a schematic diagram of an explosion structure of a low noise blower according to a first embodiment of the present utility model.

Fig. 3 is a schematic cross-sectional view of a low noise blower according to a first embodiment of the present utility model.

Fig. 4 is a schematic structural diagram of a diversion shell in a low noise blower according to a first embodiment of the present utility model.

Fig. 5 is a schematic diagram of an exploded structure of a stator in a low noise blower according to a first embodiment of the present utility model.

Fig. 6 is a schematic structural view of an example of a blower device according to a second embodiment of the present utility model.

Description of the reference numerals:

1. a drive impeller;

2. a inducer;

3. a diversion shell; 31. coaming plate; 32. a base station; 321. a fixing groove; 33. a deflector; 34. fixing the column;

100. a stator; 101. an iron core; 102. a coil; 103. a fixing part; 104. a PCB board; 200. a bearing;

301. a handle; 302. an air duct; 400. a rotating shaft;

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It is also to be understood that the terminology used in the description of the utility model herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. As used in this specification and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.

It should be further understood that the term "and/or" as used in the present specification and the appended claims refers to any and all possible combinations of one or more of the associated listed items, and includes such combinations.

Referring to fig. 1, fig. 2 and fig. 3, a low noise fan is disclosed in a first embodiment of the present utility model, which includes a driving impeller 1, a guiding impeller 2 and a guiding shell 3, wherein the driving impeller 1 and the guiding impeller 2 are adjacently arranged, and the direction of the fan blade of the driving impeller 1 is different from the direction of the fan blade of the guiding impeller 2.

The air guide shell 3 comprises a coaming 31, a base 32 and a plurality of guide plates 33, wherein the base 32 is arranged at the center of the air guide shell 3, the driving impeller 1, the guide impeller 2 and the base 32 are sequentially arranged, the coaming 31 is arranged on the periphery side of the driving impeller 1, the guide impeller 2 and the base 32 in a surrounding mode, the guide plates 33 are arranged between the base 32 and the coaming 31, a plurality of guide plates 33 are arranged on the periphery side of the base 32 in a surrounding mode at equal intervals, and at least 10 air outlet channels which are arranged at intervals are formed between the guide plates 33.

It will be appreciated that the baffle 33 is structurally configured to fix the abutment 32 and the coaming 31, and the direction of flow of the baffle 33 is parallel to the axis of the coaming 31, that is, the air outlet duct is a straight duct. In this embodiment, the deflector 33, the base 32 and the coaming 31 are integrally formed.

It will be appreciated that the driving impeller 1 and the impeller 2 are disposed on the base 32, and the driving impeller 1 rotates to form an air flow and then passes through the impeller 2, and the impeller 2 is a fixed structure and does not rotate. The air flow based on the diversion action of the plurality of blades on the diversion impeller 2 is downward, passes through the air outlet air channels formed among the plurality of diversion plates 33, and finally is blown out into a plurality of straight air flows according to the number of the air outlet air channels. That is, based on the double-layer flow guiding structure formed by the flow guiding impeller 2 and the flow guiding plate 33, the wind noise formed by the impact of the active impeller 1 on other structures after the active airflow is formed can be reduced, so that the effect of reducing the wind noise of the fan is achieved.

Optionally, as an embodiment, the impeller 2 is an integrally formed plastic structure, the driving impeller 1 is made of metal, the impeller 2 can absorb vibration and wind noise based on plastic, and noise generated during operation of the fan is reduced, especially in the process of diversion, and the impeller has a better effect of reducing wind noise compared with the metal.

With continued reference to fig. 2 and fig. 3, the number of the blades of the driving impeller 1 is different from that of the impeller 2, and the number of the blades of the driving impeller 1 is greater than that of the impeller 2, so that after the driving impeller 1 rotates to generate air flow, the air flow passes through the impeller 2 with sparse blades, thereby reducing wind noise while forming a diversion effect, and being more beneficial to the air flow passing through. Specifically, in the present embodiment, the ratio of the number of blades of the driving impeller 1 to the number of blades of the impeller 2 is 1:1.5 to 1:2.5.

Referring to fig. 2 and 4, a raised fixing column 34 is disposed on a surface of the base 32 near the impeller 2, the impeller 2 is sleeved on the outer peripheral side of the fixing column 34, the impeller 2 is fixed on the fixing column 34, and the driving impeller 1 covers the end surface of the fixing column 34.

It can be understood that, as shown in fig. 3 and fig. 4, the fixing column 34 is of a hollow protrusion structure, and the bearing 200 is positioned in the fixing column 34, and the rotation shaft 400 passes through the bearing 200 and is connected with the driving impeller 1, that is, the fixing column 34 is used as the rotation structure of the impeller 2, and the inside of the fixing column can also be used for accommodating and positioning the bearing 200, so that the space can be saved and the volume of the fan can be reduced.

With continued reference to fig. 2 and fig. 5, the low noise blower further includes a stator 100, where the stator 100 is disposed on a side of the base 32 away from the driving impeller 1, and a rotation shaft 400 passes through the stator 100 and the base 32 and drives the driving impeller 1 to rotate.

Specifically, the stator 100 includes an iron core 101 and a coil 102, the iron core 101 is of an integrally formed structure, a fixing portion 103 extending inward is provided on an inner side surface of the iron core 101, and the coil 102 is wound on the fixing portion 103. The base 32 is provided with a fixing groove 321 at one end far away from the driving impeller 1, and the iron core 101 is positioned in the fixing groove 321.

The iron core 101 is kept away from one side of base 32 is equipped with PCB board 104, the cross-sectional area of PCB board 104 is less than or equal to the cross-sectional area of iron core 101, and when the air current after the water conservancy diversion flows out in from water conservancy diversion shell 3, the less cross-section of PCB board 104 can avoid influencing the air current of outflow, ensures the stability of air current, further reduces wind noise.

Referring to fig. 6, a second embodiment of the present utility model provides a hair care device, which includes a handle 301, a wind tunnel 302, and a low noise blower provided in the first embodiment, wherein the low noise blower is disposed in any structure of the handle 301 or the wind tunnel 302. For example, when the air duct 302 is arranged inside the air duct 302, the air duct 302 can be directly aligned to the air outlet position of the low-noise fan based on the air outlet direction of the air duct. When the low noise fan is arranged in the handle 301, an air duct steering structure can be arranged according to the position of the handle 301 so as to steer the air flow blown out from the low noise fan and adapt to the air outlet direction of the air duct 302.

While the utility model has been described with reference to certain preferred embodiments, it will be understood by those skilled in the art that various changes and substitutions of equivalents may be made and equivalents will be apparent to those skilled in the art without departing from the scope of the utility model. Therefore, the protection scope of the utility model is subject to the protection scope of the claims.

Claims

1. A low noise fan, characterized in that: the device comprises an active impeller, a guide impeller and a guide shell, wherein the active impeller and the guide impeller are adjacently arranged;

the guide shell comprises a coaming, a base and a plurality of guide plates, wherein the base is arranged at the center of the guide shell, the driving impeller, the guide impeller and the base are sequentially arranged, the coaming is arranged on the periphery sides of the driving impeller, the guide impeller and the base in a surrounding mode, the guide plates are arranged between the base and the coaming, the guide plates are arranged on the periphery sides of the base in a surrounding mode at equal intervals, and a plurality of air outlet channels are formed among the guide plates;

the direction of the fan blade of the driving impeller is different from that of the fan blade of the guide impeller.

2. The low noise fan of claim 1, wherein: the number of the blades of the driving impeller is different from that of the guide impeller, and the number of the blades of the driving impeller is more than that of the guide impeller.

3. The low noise fan of claim 1, wherein: the base is close to the surface of one side of the impeller, a convex fixing column is arranged on the surface of the base, the impeller is sleeved on the outer peripheral side of the fixing column, the impeller is fixed on the fixing column, and the driving impeller covers the end face of the fixing column.

4. The low noise fan of claim 1, wherein: the stator is arranged on one side of the base station, which is far away from the driving impeller;

the rotating shaft passes through the stator and the base station and drives the driving impeller to rotate.

5. The low noise blower of claim 4, wherein: the stator comprises an iron core and a coil, the iron core is of an integrated structure, the inner side surface of the iron core is provided with a fixing part extending inwards, and the coil is wound on the fixing part.

6. The low noise blower of claim 5, wherein: the base is provided with a fixing groove at one end far away from the driving impeller, and the iron core is positioned in the fixing groove.

7. The low noise fan of claim 1, wherein: a plurality of linear air outlet channels are formed among the guide plates at intervals.

8. The low noise fan of claim 1, wherein: the guide vane wheel is of an integrated plastic structure.

9. A hair care appliance, characterized in that: a low noise blower as defined in any one of claims 1 to 8 including a handle, a wind barrel.